.container_l {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
    box-sizing: border-box;
    float: left;
    width: 50%;
}
table {
    background-color: #f8f8f8;
    border-collapse: collapse;
    font-size: 16px;
}

th, td {
    padding: 10px;
    text-align: center;
    border: 1px solid #ddd;
}

th {
    background-color: #4CAF50;
    color: white;
}

tr:nth-child(even) {
    background-color: #f2f2f2;
}

tr:hover {
    background-color: #f5f5f5;
}